BibTeX-Format:
@incollection{Klein 2009, title = {{S}emi-modal variation}, publisher = {Mouton de Gruyter}, pages = {297-323}, address = {Berlin}, typ = {incollection}, booktitle = {{D}escribing and {M}odeling {V}ariation in {G}rammar}, editor = {Andreas Dufter and Jürg Fleischer and Guido Seiler}, series = {Trends in Linguistics. Studies and Monographs